Disable Featured Image Banner Twenty Eleven w WooCommerce (3 posts)

I am using the Twenty Eleven theme (created a child theme) with the WooCommerce plugin. I want the featured image to appear in my product post but do not want it to replace my header (I want my default header to appear). How do I remove the featured image custom header function? I know I have to edit my header.php file but don't know what to remove and what to add.